ZKD-4I4SO-ETH是一款以太网口通信控制的光耦隔离大电流晶体管IO开关量输入输出控制设备。
主要用于:
?　　通过TCP/IP网口通信读取输入的开关量/脉冲高低电平信号的场合
?　　通过TCP/IP网口通信输出大电流晶体管开关量信号的场合
?　　和PLC协同工作用于DI点输入读取或者DO点输出控制的场合
?　　作为单片机/控制卡/工控机等设备的扩展卡读取或输出开关量/高低电平信号的场合
?　　需要对外部输入脉冲信号计数的场合
?　　支持IO输入状态变化主动上报(ZKD-4I4SO-ETH is an optocoupler isolated large current transistor IO switch quantity input and output control device controlled by Ethernet port communication.
Mainly used in:
An occasion to read and enter the input / pulse high and low level signals through TCP/IP communication
Switching output signal of large current transistor through TCP/IP network port communication
Work in collaboration with PLC for DI point input reading or DO point output control
An occasion for reading or exporting switch quantity / high level signal as an extended card of a single chip microcomputer / control card / industrial control machine and other equipment
An occasion requiring the external input of the pulse signal count
Support IO input state changes for active reporting)